"core": Support BlessingUsingAccessTOken in identityd_test

This CL refactors the identity server implementation in order
to support 'BlessUsingAccessToken' in test mode. In test mode
this method simply returns a blessing under a dummy email address.

Apart from this the CL also introduces tests for OAuthBlesser service
and also does some minor cleanups.

Change-Id: Ieaf6764cd77d419081324c29e05a024002d210c1
13 files changed
tree: a4196c80c678d803ee472ed785f51268ad8d893d
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/